This Neolithic-era complex boasts standing stones, a cairn, and the only henge in Western Scotland.

This eclectic sanctuary is a hodgepodge of various architectural styles, all crammed into one building.

Overlooking a Scottish loch, this beautifully crumbling castle once inspired a poem by William Wordsworth.

Nestled amid the peaks and lochs of the Scottish Highlands, this inn and pub has played host to outlaws and ghosts.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

The "Bridge Over the Atlantic" lets you cross the waterway in mere seconds.

A private home envelops the ruins of this 13th-century priory.

Looking strangely like Rome's Colosseum, this unfinished tower has dominated the skyline for over 100 years.

Nestled atop a wind-swept crag in the Scottish Highlands is a lonely memorial to a beloved hiker.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

Twisted girders are all that remain of an Icelandic bridge that was wiped out by a combination of volcanic heat and glacial floods.

Strange rock formations tower above the river that snakes through this enchanting Icelandic canyon.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

Iceland's largest geothermal mud pool is a little bit haunted and a little bit dangerous.

Walk in the footsteps of the gods and straddle two tectonic plates.

Medicinal spa created with the discharge from a geothermal energy plant.

The summer tourists on these cliffs are thousands of seabirds.

Climb right into the heart of this colorful Iceland volcano.

One of the oldest family businesses in Reykjavík serves lamb-based hot dogs.

This tiny museum's sizable collection is jammed into a former underground public toilet.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.